#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <assert.h>
size_t my_strlen(const char* s)
{
	assert(s);
	int count = 0;
	while (*s != '\0')
	{
		count++;
		s++;
	}
	return count;
}
int main()
{
	char arr[] = "abcdef";
	size_t len = my_strlen(arr);
	printf("%zd\n", len);
	return 0;
}